Cloud computing offers numerous advantages including cost savings, scalability, flexibility, improved collaboration, and automatic updates.

Key features include on-demand resource availability, broad network access, resource pooling, rapid elasticity, and measured service.

Deployment models include Public Cloud, Private Cloud, Hybrid Cloud, and Community Cloud.

The primary service models are Infrastructure as a Service (IaaS), Platform as a Service (PaaS), and Software as a Service (SaaS).

IaaS provides flexible computing resources, reduces hardware investment, offers scalability, and enables rapid provisioning.

PaaS simplifies development, offers tools and libraries, accelerates deployment, and improves collaboration.

SaaS allows easy access through browsers, reduces maintenance burden, provides automatic updates, and enables scalability.